OESA-2021-1371

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1371
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2021-1371.json
JSON Data
https://api.test.osv.dev/v1/vulns/OESA-2021-1371
Upstream
Published
2021-09-30T11:03:14Z
Modified
2025-08-12T05:09:27.358976Z
Summary
qemu security update
Details

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed.

Security Fix(es):

A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.(CVE-2021-3748)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:20.03-LTS-SP1 / qemu

Package

Name
qemu
Purl
pkg:rpm/openEuler/qemu&distro=openEuler-20.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.1.0-57.oe1

Ecosystem specific 

{
    "noarch": [
        "qemu-help-4.1.0-57.oe1.noarch.rpm"
    ],
    "x86_64": [
        "qemu-guest-agent-4.1.0-57.oe1.x86_64.rpm",
        "qemu-debugsource-4.1.0-57.oe1.x86_64.rpm",
        "qemu-seabios-4.1.0-57.oe1.x86_64.rpm",
        "qemu-block-rbd-4.1.0-57.oe1.x86_64.rpm",
        "qemu-img-4.1.0-57.oe1.x86_64.rpm",
        "qemu-block-ssh-4.1.0-57.oe1.x86_64.rpm",
        "qemu-block-curl-4.1.0-57.oe1.x86_64.rpm",
        "qemu-block-iscsi-4.1.0-57.oe1.x86_64.rpm",
        "qemu-4.1.0-57.oe1.x86_64.rpm",
        "qemu-debuginfo-4.1.0-57.oe1.x86_64.rpm"
    ],
    "src": [
        "qemu-4.1.0-57.oe1.src.rpm"
    ],
    "aarch64": [
        "qemu-debugsource-4.1.0-57.oe1.aarch64.rpm",
        "qemu-block-rbd-4.1.0-57.oe1.aarch64.rpm",
        "qemu-block-iscsi-4.1.0-57.oe1.aarch64.rpm",
        "qemu-block-ssh-4.1.0-57.oe1.aarch64.rpm",
        "qemu-4.1.0-57.oe1.aarch64.rpm",
        "qemu-guest-agent-4.1.0-57.oe1.aarch64.rpm",
        "qemu-block-curl-4.1.0-57.oe1.aarch64.rpm",
        "qemu-debuginfo-4.1.0-57.oe1.aarch64.rpm",
        "qemu-img-4.1.0-57.oe1.aarch64.rpm"
    ]
}

openEuler:20.03-LTS-SP2 / qemu

Package

Name
qemu
Purl
pkg:rpm/openEuler/qemu&distro=openEuler-20.03-LTS-SP2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.1.0-58.oe1

Ecosystem specific 

{
    "noarch": [
        "qemu-help-4.1.0-58.oe1.noarch.rpm"
    ],
    "x86_64": [
        "qemu-debugsource-4.1.0-58.oe1.x86_64.rpm",
        "qemu-debuginfo-4.1.0-58.oe1.x86_64.rpm",
        "qemu-4.1.0-58.oe1.x86_64.rpm",
        "qemu-block-iscsi-4.1.0-58.oe1.x86_64.rpm",
        "qemu-img-4.1.0-58.oe1.x86_64.rpm",
        "qemu-block-ssh-4.1.0-58.oe1.x86_64.rpm",
        "qemu-block-curl-4.1.0-58.oe1.x86_64.rpm",
        "qemu-guest-agent-4.1.0-58.oe1.x86_64.rpm",
        "qemu-seabios-4.1.0-58.oe1.x86_64.rpm",
        "qemu-block-rbd-4.1.0-58.oe1.x86_64.rpm"
    ],
    "src": [
        "qemu-4.1.0-58.oe1.src.rpm"
    ],
    "aarch64": [
        "qemu-debuginfo-4.1.0-58.oe1.aarch64.rpm",
        "qemu-block-ssh-4.1.0-58.oe1.aarch64.rpm",
        "qemu-block-curl-4.1.0-58.oe1.aarch64.rpm",
        "qemu-4.1.0-58.oe1.aarch64.rpm",
        "qemu-block-rbd-4.1.0-58.oe1.aarch64.rpm",
        "qemu-img-4.1.0-58.oe1.aarch64.rpm",
        "qemu-guest-agent-4.1.0-58.oe1.aarch64.rpm",
        "qemu-block-iscsi-4.1.0-58.oe1.aarch64.rpm",
        "qemu-debugsource-4.1.0-58.oe1.aarch64.rpm"
    ]
}